body {
    background-color: #f8f9fa;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: 1px solid rgba(0, 0, 0, 0.125);
    margin-bottom: 1rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    font-weight: bold;
}

.nav-tabs .nav-link.active {
    background-color: #fff;
    border-bottom: 1px solid #fff;
}

.result-image {
    max-width: 100%;
    height: auto;
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
}

.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 5px;
}

.status-completed {
    background-color: #28a745;
}

.status-in-progress {
    background-color: #ffc107;
}

.status-locked {
    background-color: #dc3545;
}

.shape-sequence {
    font-size: 1.5rem;
    font-weight: bold;
}